Portable lock for swinging doors



Dec. 5, 1950 B. N. WICKWIRE 2,532,585

PORTABLE LOCK FOR SWINGING DOORS I Filed Aug. 50, 1946 2 Sheets-Sheet 1Fig. I.

auucuroz- BJVI Wclfwre B. N. WICKWIRE PORTABLE LOCK FOR SWINGING DOORSDec. 5, 1950 2Sheets-Sheet' 2 Filed Aug. 50, 1946 V Clu mu m ['01, BJV.VVcIfwLre Patented Dec. 5, 1950 UNETED STTE 'NT GFFICE 1 Claim.

position out of the way of the door locked there-' by, to the end thatthe door may be operated without the necessity of removing the lock.

Still another object of the invention is to prcvide a portable look ofthis character which may be readily swung to its active position, novelmeans being provided for holding the arm in its active position againstthe door to prevent opening the door.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claim, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawings Figure 1 is an elevational view illustrating alock constructed in accordance with the invention and positioned on adoor, the lock being shown in its locking position.

Figure 2 is an elevational view of the lock, il-

lustrating the pivoted arm thereof as swung downwardly out of the way ofthe door locked thereby, to permit the door to be opened.

Figure 3 is a sectional view taken on line 33 of Fig. 1.

Figure 4 is a sectional view taken through the pivot pin of the lock.

Figure 5 is an elevational view illustrating the rear surface of thelock.

Figure 6 is a perspective view of the portable lock constituting thesubject matter of the present invention.

Referring to the drawings in detail, the lock embodies a supportingplate 5 which is formed with a right-angled portion 6 from which thespaced prongs I extend, the prongs 1 extending at right angles withrespect to the right-angled portion 6.

Pivotally mounted on the supporting plate 5, is the bar 8 which providesthe locking arm of the device. As shown, the bar 8 is connected with 1into the circular portion of the opening.

the supporting plate 5, by means of th pivot 9 which is formed with asquare shank, and a head Iii at the outer or free end of the pivot pin9, the head resting against the bar 8, to hold the bar to the supportingplate.

As shown, the bar 8 is formed with a circular opening ll of a diameterto accommodate the square shank of the pivot pin 9 in such a way thatthe bar 8 may pivot with respect to the supporting plate, and be movedfrom the position shown by Fig. 1 of the drawings, to its unlockedposition as shown by Fig. 2 of the drawings.

The opening H is of the keyhole type, and is provided with an extensionformed with straight walls 12 that accommodate the straight edges of thesquare shank of the pivot pin 9, as shown by Fig. 4. When the bar 8 isin its locked position, the bar is moved with respect to the squareshank of the pivot pin, to hold the bar 8 in a horizontal position asshown by Fig. 1.

, With the bar 8 in this position, it would be impossible to move thebar 8 to clear the door, and permit the opening of the door, withoutmoving the bar 3 to bring the square pivot pin 9 With the bar 9 in thisposition, it is obvious that the bar 9 will swing downwardly out of thepath of travel of the door swinging to its open position.

When using the portable lock, the supporting plate 5 is positioned overone edge of the door rame, in a manner as shown by Fig. 1 of thedrawings. It may be desirable to so position the supporting plate thatthe prongs I thereof may be driven into the door frame to secure it inposition. However, after the supporting plate has been properlypositioned, the bar 8 is swung upwardly in front of the door to preventthe door from swinging to its open position.

A rubber block such as indicated by the reference character it may nowbe positioned within the space between the bar 8 and the door, to insureagainst damage to the finish of the door, should the door be moved intoengagement with the bar 8.

From the foregoing it will be seen that due to the construction shownand described, I have provided a portable lock which may be readily andeasily positioned by persons unfamiliar with mechanics, to look aswinging closure by a locking means other than the usual door lockcarried by the door.

What is claimed is:

A portable lock for swinging closures, comprising a supporting platehaving a right-angled portion terminating in prongs extending therefromin parallel spaced relation with the supporting plate, a pivot pinextending from the supporting plate, the shank of the pivot pin beingsquare in cross section, a locking bar having a keyhole slot in whichthe shank of the pivot pin operates, the keyhole slot being disposedlongitudinally of the locking bar, said shank engaging the Walls of theslot, holding the locking bar in its horizontal locking position overthe closure, one end of the locking bar being extended at right anglesproviding a finger piece, and said prongs and right-angled end portionbeing fitted over one edge of a door frame securing the supporting platein position on a door frame.

BERTRAM N. WICKWIRE.

4 REFERENCES CITED The following references are of record in the file ofth Number is patent:

UNITED STATES PATENTS Name Date Illingworth Jan. 16, 1866 King Apr. 22,1924 Mueller June 16, 1925

